/** type code test. */
 @Test
 public void testTypeCode() {
   assertEquals(typeCode, genericCacheKey1.getTypeCode());
 }
 /** Equals test. */
 @Test
 public void testEquals() {
   assertTrue(genericCacheKey1.equals(genericCacheKey2));
   assertFalse(genericCacheKey1.equals(genericCacheKey3));
 }